Only if it were created by Kenkou Cross. If it's not created by KC it's considered fan fiction and should be treated as such.
As a note, the new ones make it here one way or another pretty quickly after KC posts them up, generally speaking. And if you can't find an original, Japanese version on KC's web site, then it's not a KC original.
And there are maaaany of those...
Read one of a chubacabra, amazing artwork. Had a dream about it, made it into a fanfic. Then looked between pages on this wikia, it didn't exsist.. the fanfic is useless now. T.T